Roof Structures - UnitCare

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roof STRUCTURESRoofsSECTION1MODULE 3SHEET 5SECTIONSECTION11MODULESHEETSECTION12Roo f StructuresTypes of roof structureTraditional roofs can be divided into three main types of structure : Single roofs. Double roofs. Trussed construction methods make use of another type of roof structure and this is known as trussed rafter roofs (see trussed rafter roofs).Trussed roofSingle roofDouble roofTrussed rafter roofROOF STRUCTURESRoofsSECTION12 MODULE 3 SHEET 6Single roofsRafters of single roofs do not require any intermediate support. This type of roof has a number of limitations.

ROOF STRUCTURES Roofs SECTION1 MODULE 3 SHEET 7 12SECTION Collar roof A collar roof incorporates a horizontal roof member positioned approximately one third

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